General Information
Erdco 25D Turbo-Flo offer the precision of turbine technology with rugged construction. The practical design of the probe includes a bluff bar that protects the turbine from foreign materials in the stream as well as from over-insertion. Installation is simple and does not require special fittings. The Turbo-FloTM probe may be installed in standard pipe tees, through pipe saddles, welding spuds, and 1 1/2” full opening ball or gate valves.
Principle of Operation
The turbine is positioned in the mid-section of the pipe with its axis of rotation parallel with the flow stream. Fluid velocity causes the turbine, which has a ring magnet inside of its hub, to rotate in proportion to flow rate. As the turbine rotates, the magnetic field passes through a coil in the probe body, generating a pulse output in proportion to the turbine rotation speed. Flow volume is then determined from fluid velocity measurement and pipe diameter information
Erdco 25D Turbo-Flo Features
- Delrin® non-metallic construction is ideal for water applications. Resists corrosion and mineral salt accumulation.
- Steel or stainless steel connector fittings.
- Adjustable insertion length for 11 ?2 to 10 inch pipe.
- Lower cost than stainless steel probes.
- Rugged construction for industrial environments.
- No external power required.
- Wide measuring range with 30:1 turndown.
- Low mass Delrin® turbines offer improved sensitivity and long life.
- Use standard pipe fittings for installation
Erdco 25D Turbo-Flo Applications
- Water and other aqueous solutions
- Chiller and cooling tower loops
- Water treatment systems
- Irrigation systems
Design Options
- 15 feet or more of cable for connection to remotely mounted display/transmitter.
- Probe mounted options include 4-20 mA signal output transmitters and displays
- The LCD rate/total display does not require external power. Turbine rotation recharges the lithium power cell in the display.
- Transmitters and displays can also be wall mounted. Shown:
- TF-15350-2 Rate/total display
- TF-15390 Rate/total display with 4-20 mA transmitter
- TF-15385 4-20 mA transmitter (no display)
- The wall mounted TF-15275 Series of Flow Controllers includes 4-20 mA signal output and two optional
adjustable set points eachwith Form C 5A contacts. NEMA 4X enclosure. 85-265 VAC, 47-63 Hz.
Specifications
- Accuracy : ±1.0%
- Repeatability : ±0.5%
- Linearity : ±0.5%
- Turndown : 30:1
- Insertion Length : 02 = 2 inches 06 = 6 inches 12 = 12 inches
- Threshold : 0.5 ft/s or 1.22 x ID2 = GPM Liquid
- Velocity : ft/s = 0.408 x GPM/pipe ID2, Point Velocity = 2.625 pulses/ft/s
- Pulse/gallon correction for uncharted pipe diameters = ID2 charted pipe Pulse/gallon ID2 uncharted pipe x charted pipe
- Materials of Construction :
- Probe : Delrin®
- Connector : Steel, 303sst
- Turbine : Delrin®
- O-rings : Buna-n or Viton®
- Temperature Limits : 225°F(107°C)
- Pressure Limits : 145 psig(10bar)@ 75°F(24°C)
ERDCO reserves the right to alter design and/or specifications without notice. Viton® and Delrin® are registered trademarks of E.I. Dupont de Nemours and Co.
Download Datasheet: Erdco Turbo-Flo 25D Series
Reference : erdco.com
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